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JP4217402B2 - electric toothbrush - Google Patents

electric toothbrush Download PDF

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Publication number
JP4217402B2
JP4217402B2 JP2001522920A JP2001522920A JP4217402B2 JP 4217402 B2 JP4217402 B2 JP 4217402B2 JP 2001522920 A JP2001522920 A JP 2001522920A JP 2001522920 A JP2001522920 A JP 2001522920A JP 4217402 B2 JP4217402 B2 JP 4217402B2
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JP
Japan
Prior art keywords
electric toothbrush
head
longitudinal axis
gear
swivel arm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2001522920A
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Japanese (ja)
Other versions
JP2004507273A (en
JP2004507273A5 (en
Inventor
ブラウシュタイン、ローレンス、エイ.
ノッティンガム、ジョン、アール.
オシャー、ジョン
スピーク、ジョン、ダブリュ.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Church and Dwight Co Inc
Original Assignee
Church and Dwight Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Church and Dwight Co Inc filed Critical Church and Dwight Co Inc
Publication of JP2004507273A publication Critical patent/JP2004507273A/en
Publication of JP2004507273A5 publication Critical patent/JP2004507273A5/ja
Application granted granted Critical
Publication of JP4217402B2 publication Critical patent/JP4217402B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/24Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously
    • A61C17/26Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like rotating continuously driven by electric motor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/3409Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
    • A61C17/3436Rotation around the axis perpendicular to the plane defined by the bristle holder
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C17/00Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
    • A61C17/16Power-driven cleaning or polishing devices
    • A61C17/22Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
    • A61C17/32Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
    • A61C17/34Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
    • A61C17/349Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor with multiple brush bodies
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C2204/00Features not otherwise provided for
    • A61C2204/002Features not otherwise provided for using batteries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/42Brushes
    • B29L2031/425Toothbrush

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Brushes (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

An electric toothbrush comprising an elongated body portion and a head including a static portion and a circular portion, a handle, and an angled shaft between the head and the handle. The circular portion rotates or reciprocates about an axis normal to a longitudinal axis of the head. The circular portion includes stiff bristles and the static portion includes soft bristles. The elongated body portion is hollow and further includes a motor in the hollow portion, which is operatively connected to the circular portion for rotating or oscillating or reciprocating the circular portion. A battery is located within the hollow section for powering the motor. A switch is operatively connected to the motor to provide momentary and continuous operation of the toothbrush. A worm gear and a pair of step gears are located in the hollow portion. The motor is operatively connected to the worm gear and the step gears are operatively connected to the worm gear and to each other. One of the step gears is offset with respect to a longitudinal axis of the elongated body portion. A shaft which is operatively connected to the offset step gear and to a second end to the circular portion. Alternately, the toothbrush comprises a plurality of gears and swivel arms which move the brush head moving portion in a rotating, oscillating or reciprocating manner.

Description

【0001】
【発明の属する技術分野】
本発明は、電動歯ブラシに関し、詳細には改良された電池式歯ブラシに関する。
【0002】
【背景技術】
電動歯ブラシを使って歯を磨く利点は十分に周知されており、歯ブラシの電動運動は、ごく最近の革新および設計活動の主題だった。また、市場には、過去数年の間に、多くの異なるタイプの電動歯ブラシが導入された。しかし、利用可能な技術を考察すると、歯をより効果的に清掃するために歯ブラシの剛毛および頭部の電動運動を行う方法は、次第に複雑で高く付き、商業的に実行不能になる傾向があることが分かる。
【0003】
市場は、2つの価格市場に分割するようになった。価格の上端には、剛毛およびブラシ頭部に様々な運動を提供する、より複雑な電動歯ブラシがある。市場の下端は、非常に単純な電動歯ブラシの範囲になり、モータのシャフトに取り付けられた偏移重量を使用して振動するだけであり、ブラシの清掃表面には強力な運動が伝達されないため、こうした歯ブラシでは真の付加的な清掃上の利点は非常に少ない。振動も、手にとって非常に不快であり、適切な時に歯を磨こうとする意欲を損なう作用をする。
【0004】
長年にわたって、多くの電動歯ブラシが開発されて来た。公知のいくつかの装置は、米国特許5,070,567号、第5,186,627号、第5,274,870号、第5,341,534号、第5,378,153号および第5,732,433号に記載されている。本発明の意図は、低価格で効果的であり、人間工学的に正しい電動歯ブラシであって、ブラシが可動円形ブラシ部分および固定ブラシ部分の両方を備える電動歯ブラシを提供することである。したがって、上記およびその他の欠点を克服するとともに、より優れてより有利な全体的結果を提供する新規の改良された電動歯ブラシを開発することが望まれると考えた。
【0005】
なお、本出願は、1998年9月30日に提出の米国特許出願第09/163,621号の一部継続出願である1999年1月25日に提出の特許出願第09/236,794号の一部継続出願である。
【0006】
【課題を解決するための手段】
本発明は、電動歯ブラシに関する。
【0007】
詳細には、電動歯ブラシは、電動運動を使用して人の歯および歯肉を清掃するために人の衛生に使用される。
【0008】
第1の好ましい実施態様では、電動歯ブラシは、長形本体部分と、長形本体部分の第1端部に取り付けられたブラシ頭部と、長形本体部分の第2端部に取り付けられたハンドルと、ブラシ頭部とハンドルとの間の傾斜シャフトとを備える。
【0009】
ブラシ頭部は、長手方向軸線と、円形または運動部分と、静止部分とを備える。円形部分は、ブラシ頭部の長手方向軸線に垂直な軸線周囲で回転、旋回、螺旋運動、振動または往復運動し、より大きいブラシ方の頭部に組み込まれている。静止部分は、円形部分の反対側に位置する静止剛毛を備える。円形部分の硬質剛毛は、静止部分の剛毛よりもわずかに高さが凹んでいて良い。この特定の構成により、円形部分は、深く清掃して歯垢を除去する過程に役立つ硬質剛毛を備えることができ、静止剛毛は、歯肉を損傷しないように比較的軟質の剛毛から一般に構成される。
【0010】
ブラシ頭部は、使用者が上下運動という典型的な方法で歯を磨くことを可能にする従来の比較的大きいブラシ頭部形状を有し、ブラシ頭部の電動部分はより効果的に清掃する。ブラシ頭部のこの構造は、安価な製造を可能にし、効果的な電動歯ブラシをより多くの人が経済的に使用することを可能にする。
【0011】
傾斜シャフトは、電動歯ブラシに利用されなかった人間工学的利益を提供する。傾斜は、口腔の後側の凹部に容易に接近し、歯の表面に接触するという人間工学的利点に関して良く周知されている。
【0012】
長形の本体部分は、中空部分を備える。この歯ブラシは、長形本体部分の中空部分内にモータをさらに備える。モータは、ブラシ頭部の可動部分に操作可能に接続し、頭部上の可動剛毛を回転、振動または往復運動させる。モータは、長形本体部分の長手方向軸線と同軸の長手方向軸線を有する。
【0013】
中空部分は、単純化されたギヤ組立体をさらに備える。ギヤ機構は、数種類の実施態様のどれかから構成することができる。一実施態様では、ギヤ組立体は、ウォームギヤ、2つのステップギヤおよびシャフトを備える。モータは、ウォームギヤに作動的に接続する。ステップギヤは、ウォームギヤおよび互いに作動的に接続する。ギヤ組立体は、十分なトルクおよび速度を供給し、バッテリの寿命を持続させる。第1ステップギヤは、第2の一致するステップギヤを長形本体部分の長手方向軸線に対して偏位させて所望の角度で配置することができ、その結果、シャフト自体が直線状態を保つことができ、可撓性シャフトの付加的な摩擦により動力またはトルクが損失しないようにすることができる。シャフトは、第1端部が偏位ステップギヤに、第2端部がブラシ頭部の可動部分に作動的に接続される。
【0014】
本体は、ユニットを作動させるスイッチをさらに備える。このスイッチは、作動ボタンおよび金属接点を備える。成形作動ボタンを手で下に押してスイッチを押し下げると金属接点が圧迫され、従来の一時的スイッチの場合と同様に回路が完成する。このスイッチは、従来の連続スイッチの場合のように、傾斜路構造を介して、作動ボタンを前方に押して摺動させることにより、連続動作を可能にする。この前方運動は、成形傾斜路と組み合わされて、作動ボタンを下方に移動させて金属接点を圧迫し、回路を完成させる。1つのスイッチにおけるこれら2つの機能を結合することにより、消費者は、購入前にユニットを試してその動作を確認し、開梱した後にユニットを連続的に動作させることができる。
【0015】
この電動歯ブラシは、長形本体部分の中空部分内に配置されたバッテリをさらに備えることができる。擢動可能なスナップ式カバーは、押し下げるとハンドルの端部から解放されて開き、中空部分が露出する。バッテリを挿入し、カバーを所定の位置に摺動させて所定の位置にスナップ嵌合させる。
【0016】
第2の好ましい実施態様では、電動歯ブラシは、長形本体部分と、長形本体部分の第1端部に取り付けられたブラシ頭部と、長形本体部分の第2端部に取り付けられたハンドルと、ブラシ頭部とハンドルとの間の傾斜シャフトとを備える。
【0017】
ブラシ頭部は、長手方向軸線と、円形または可動部分と、静止部分と、第1端部および第2端部とを備える。頭部の第1端部は長形本体部分の第1端部に隣接して位置し、第2端部は第1端部に対向して位置する。静止部分は、頭部の第1端部または第2端部に位置する。円形部分は、頭部の対向端部に位置する。可動部分は、ブラシ頭部の長手方向軸線にほぼ垂直な軸線周囲で回転、旋回、螺旋運動、振動または往復運動することができ、大きい方のブラシ頭部内に組み込まれる。円形部分は、使用者の口腔の後部に容易に接近して清掃しやすくするために、ブラシ頭部の第2端部に配置することが好ましい。静止剛毛は、円形部分に隣接して位置する。この特定の配置は、円形部分に硬質剛毛を備えることにより、使用者の口腔のさらに後部を深く清掃して歯垢を除去する過程を促進し、静止剛毛は、歯肉を損傷しないように比較的軟質剛毛から一般に構成することを可能にする。
【0018】
第3の好ましい実施態様では、電動歯ブラシは、対向する第1端部および第2端部を有する長形の本体部分と、中空部分と、長手方向軸線と、長形本体部分の第1端部に取り付けられた頭部とを備える。ハンドルは、長形本体部分の第2端部に取り付けられる。
【0019】
傾斜シャフトは、頭部とハンドルとの間に位置する。この歯ブラシは、長形本体部分の中空部分内に配置されたモータをさらに備える。
【0020】
複数のギヤは、中空部分内に位置する。これら複数のギヤは、第1ギヤおよび第2ギヤを含む。モータは第1ギヤに接続され、第1ギヤは第2ギヤに接続される。
【0021】
この歯ブラシは、3個の旋回アームをさらに備える。第1旋回アームは、一方のギヤに枢着される。第1および第2旋回アームは、互いに枢着される。
【0022】
シャフトは、シャフトの第1端部が一対の旋回アームの一方に作動的に接続され、シャフトの第2端部が第3旋回アームに作動的に接続される。シャフトは、傾斜シャフト内に位置する。
【0023】
頭部は、可動部分と静止部分とをさらに備えることができる。可動部分および静止部分は、互いに隣接して位置する。第3旋回アームは、可動部分に接続される。可動部分は、第3旋回アームに接続されるディスクをさらに含む。
【0024】
可動部分は、頭部の第1端部に隣接して配置することができ、静止部分は、頭部の第2端部に隣接して配置する。別法によると、静止部分は頭部の第1端部に隣接して位置し、可動部分は頭部の第2端部に隣接して位置する。可動部分は頭部の中央部に位置し、静止部分は頭部の対向側に位置しても良い。
【0025】
シャフトは、長形本体部分の長手方向軸線に沿って前後に移動する。
【0026】
第1ギヤは長手方向軸線周囲で回転し、第2ギヤは、長手方向軸線に垂直な軸線周囲で回転する。
【0027】
旋回アームは、長形本体部分の長手方向軸線に沿って前後に移動する。
【0028】
可動部分は、頭部の長手方向軸線に垂直な軸線周囲で回転または振動することができる。
【0029】
別法によると、可動部分は、頭部の長手方向軸線に沿って前後に移動することができる。
【0030】
スイッチは、モータに操作可能に接続される。スイッチを押すと、歯ブラシは瞬間的に作動し、スイッチを押して、長形本体部分のスロット内に摺動させると、歯ブラシは連続的に作動する。
【0031】
本発明の1つの利点は、従来の比較的大きい頭部形状を有するブラシ頭部を備え、使用者が上下に歯を磨くことを可能にするた電動歯ブラシを提供することである。
【0032】
本発明のもう1つの利点は、安価で製造が容易な電動歯ブラシを提供することである。
【0033】
本発明のもう1つの利点は、傾斜シャフトを備え、使用者の口腔の後部に接近しやすい電動歯ブラシを提供することである。
【0034】
本発明のさらにもう1つの利点は、静止部分と、円形部分つまり回転、旋回、振動または往復運動する可動部分とを備えた電動歯ブラシを提供することである。
【0035】
本発明のさらにもう1つの利点は、回転、往復運動、旋回または振動し、ブラシ頭部の端部に配置されて使用者の口腔の後部に接近しやすい円形部分を提供することである。
【0036】
本発明のさらにもう1つの利点は、歯ブラシの瞬間的動作または連続的動作を可能にするスイッチを備えた電動歯ブラシを提供することである。
【0037】
本発明のもう1つの利点は、可動ブラシ頭部を回転または旋回させる単純化された機構を提供する旋回アームを備えた電動歯ブラシを提供することである。
【0038】
本発明のさらに他の利点および利益は、当業者にとっては、以下の詳細な説明を読んで理解することにより明白になるであろう。
【0039】
【発明の実施の形態】
本発明は、特定部品の実際的な形態および各部品の配置を取ることができ、その好ましい実施態様について、以下で詳細に説明し、本明細書の一部を構成する添付の図面に示す。
【0040】
次に、各図面を参照する。これら図面は、本発明の好ましい実施態様を示すためにのみ提示し、本発明を制限する意図はない。図1は、本発明の第1の好ましい実施態様による電動歯ブラシを示す。この電動歯ブラシは、人の歯および歯肉を磨くなどのような人の衛生のために使用することができる。
【0041】
図1に示すように、この電動歯ブラシは、第1端部12および第2端部14を有する長形本体部分10を備える。頭部16は第1端部12に取り付けられ、ハンドル18は第2端部14に取り付けられている。
【0042】
頭部16は、より伝統的な比較的大きいブラシ頭部形状を有し、使用者が上下の一般的な方法で歯を磨くことを可能にする。図2に示すように、頭部16の長さ寸法「X」は、約.75インチ〜約1.75インチが良い。ブラシ頭部16の厚さ寸法「Y」は、約.25インチ〜約.50インチが良い。頭部16の構造は、安価に製造することを可能にし、効果的な電動回転歯ブラシを大部分の人々が経済的に手が届く範囲内にするのに役立つ。
【0043】
図3を参照すると、頭部16は、長手方向軸線19と、円形部分つまり可動部分またはブラシ頭部20と、静止部分つまりブラシ頭部22,22とを備える。静止部分22,22は、円形部分20の対向側に位置する。円形部分20は、ブラシ頭部16の中央部に位置する。円形部分20は、ブラシ頭部16の長手方向軸線19にほぼ垂直な軸線周囲で回転、旋回、振動または往復運動する。円形部分20は、360°回転するかもしくは部分的に回転するか、または前後に振動もしくは往復運動することができる。
【0044】
円形部分20は、硬質剛毛24を備える。静止部分22は、軟質剛毛26を備える。硬質剛毛24は、軟質剛毛26よりもわずかに凹んでいる。硬質剛毛24は、深く清掃して歯垢を除去する過程を促進し、静止している軟質剛毛26は、歯肉を損傷しないように比較的軟質である。図2に示す剛毛の太さ寸法「Z」は、約.25インチ〜約.75インチが良い。
【0045】
再び図3を参照すると、長形本体部分10は、頭部16とハンドル18との間に位置する傾斜シャフト28をさらに備える。傾斜シャフト28は、従来の電動歯ブラシでは利用できなかった人間工学的利点を提供する。この傾斜角度は、口腔の後部凹み内に容易に接近し、歯の表面に接触することを可能にするという点で、人間工学的利点が十分に周知とされている。
【0046】
図4および図5を参照すると、長形本体部分10は、モータ32を収容する中空部分30をさらに備える。モータ32は、長形本体部分10の長手方向軸線36と一致する長手方向軸線34を有する。
【0047】
円形部分20に動力を供給して回転、振動または往復運動させるため、モータ32はウォームギヤ40および一対のステップギヤ42,43を駆動する。モータ32は、ウォームギヤ40に動作可能に接続する。ステップギヤ42は、ステップギヤ43およびウォームギヤ40に動作可能に接続する。
【0048】
図4および図6に示すように、第1ステップギヤ42は、第2ステップギヤ43が長形本体部分10の長手方向軸線36に対して偏位するように組み合わせることを可能にする。
【0049】
図4、図6および図7に示すように、シャフト44は、その第一端部が偏位したステップギヤ43に接続し、その第2端部が円形部分20に接続する。第2ステップギヤ43は、シャフト44自体が直線状態を保ち、その結果可撓性シャフトの付加的な機能を介して電力またはトルクが失われないように所望の角度で配置される。
【0050】
再び図5を参照すると、モータ32およびギヤ40,42,43は、上部筐体46および下部筐体48内に収容される。
【0051】
再び図4を参照すると、スイッチ50は、電動歯ブラシの動作を制御するために設けられており、モータ32に動作可能に接続されている。スイッチ50は、成形作動ボタン52と、金属接点54とを備える。スイッチ50は、成形作動ボタン52が手で押し下げられると、その結果、金属接点54が圧迫されて回路が完成し、歯ブラシは一次的に動作する。スイッチ50は、傾斜路構造により連続的な動作も可能であり、頭部16に向かって前方にボタン52を摺動させると、連続的な動作が可能になる。ボタン52を前方に移動させると、金属接点54内の成形傾斜路58に結合し、ここが下方に移動して、金属接点54が圧迫されて回路が完成する。次に、歯ブラシは、ボタン52がハンドル18に向かってオフ位置に摺動して戻り、金属接点54から離れるまで、連続的に動作する。
【0052】
1個のスイッチ50に、これら2種類の機能を結合することにより、歯ブラシは、図8に示す状態で包装することができ、消費者は、包装の上からボタン52を押し下げて、歯ブラシが包装されたまま歯ブラシの動作を確認し、包装から出した後は連続的に作動させることができる。図8は、ボタン52の1つの種類を示す。ボタンの他のサイズおよび形状を使用することもできる点に注目すべきである。
【0053】
次に、図4および図5を参照すると、バッテリ60は、長形本体部分10の中空部分30内に配置されている。バッテリの端子または接点62は、バッテリ60に設けられる。単三バッテリは、図4に示すように使用することができる。バッテリ60を中空部分30内に設置するには、摺動可能なスナップ式カバー64を押し下げて、ハンドル18の端部から摺動させて取り外し、中空部分30を露出させる。バッテリ60を挿入してから、カバー64を筐体上に摺動させて戻し、所定の場所にスナップ嵌合させる。次に、バッテリ60の端子端部を金属接点54に接触させる。
【0054】
必要なら、凹部または把持領域70および72は、図4に示すように上部筐体および下部筐体46,48内に成形することができる。凹部70,72は、使用者の親指および人差し指または他の指を支持して、電動歯ブラシの使用を容易に、さらに快適にするために使用される。
【0055】
本発明による電動歯ブラシの第2の好ましい実施態様を図9に示す。
【0056】
この電動歯ブラシは、第1端部82および第2端部84を有する長形本体部分80を備える。頭部86は第1端部82に取り付けられ、ハンドル88は第2端部84に取り付けられる。
【0057】
次に、図11を参照すると、頭部86は、長手方向軸線90と、円形つまり可動部分つまりブラシ頭部100と、静止部分つまりブラシ頭部102と、第1端部104と、第2端部106とを備える。第1端部104は、長形本体部分80の第1端部82に隣接して位置する。第2端部106は、第1端部104に対向して位置する。円形部分100は、ブラシ頭部86の第2端部106に位置することが好ましい。静止部分102は、円形部分100に隣接するブラシ頭部86の第1端部104に位置することが好ましい。しかし、円形部分100および静止部分102は、異なる向きに配置しても良いことを評価するべきである。円形部分100は、ブラシ頭部86の長手方向軸線90にほぼ垂直な軸線周囲で回転、旋回、振動または往復運動する。
【0058】
第2の好ましい実施態様も、図4および図6に示すように、ウォームギヤ40および一対のステップギヤ42,43を有する。モータ32は、ウォームギヤ40および一対のステップギヤ42,43に動力を供給する。ステップギヤ42は、対応するステップギヤ43が長形本体部分80の長手方向軸線に対して偏位することを可能にする。
【0059】
図4、図6および図7に示すように、シャフト44は、その第1端部が偏位ステップギヤ43に接続し、その第2端部が円形部分100に接続する。第2ステップギヤ43は、シャフト44が直線状態を保ち、可撓性シャフトの付加的な摩擦により動力またはトルクが損失しないように、所望の角度で配置される。
【0060】
再び図9を参照すると、スイッチ130は、電動歯ブラシの動作を制御するために設けられ、モータ32に動作可能に接続する。スイッチ130は成形作動ボタン132を含むスイッチ130は、成形作動ボタン132を手で押し下げると金属接点54が圧迫されて回路が完成し、歯ブラシの一時的な動作が行われる。スイッチ130の動作は、図4および図6に示し、第1の好ましい長形本体部分について説明した動作と同じである。スイッチ130は、傾斜路構造を介して、ボタン132を頭部86に向かって前方に摺動させることにより、連続動作も可能にする。次に、歯ブラシは、ボタン132がハンドル88に向かってオフ位置に摺動して戻り、ボタン132が金属接点54から離れるまで連続的に動作する。
【0061】
第1の好ましい実施態様に関する図4および図5に示すように、第2の好ましい実施態様も、バッテリ端子または接点62が長形本体部分80の中空部分30内に設けられたバッテリ60を有する。バッテリ60を中空部分30内に取り付けるには、摺動可能なスナップ式カバー134(図9〜図11に示す)を押し下げて摺動させ、ハンドル88の端部から外して中空部分30を露出させる。バッテリ60を挿入してから、カバー134を筐体上に摺動させて戻し、所定の位置にスナップ勘合させる。
【0062】
必要なら、隆起把持領域136は、図9および図11に示すように、下部筐体124内に成形することができる。隆起部分136は、使用者の親指および人差し指またはその他の指を支持して、電動歯ブラシの使用をより容易に、より快適にするために使用される。隆起部分140も、スナップ式カバー134上に成形すると、親指でカバーを把持してカバーをハンドル88から取り外すのに役立つ。
【0063】
第2の好ましい実施態様の電動歯ブラシも、第1の好ましい実施態様に関して図8に示すように包装すると、消費者は、包装の上からボタン132を押し下げて、歯ブラシが包装されたまま歯ブラシの動作を確認し、包装から出した後は連続的に作動させることができる。
【0064】
本発明の第3の好ましい実施態様を図12に示す。
【0065】
電動歯ブラシは、第1端部152および第2端部154を有する長形本体部分150を備える。頭部160は第1端部152に取り付けられ、ハンドル162は第2端部154に取り付けられる。
【0066】
頭部160は、可動部分つまりブラシ頭部164と、静止部分つまりブラシ頭部166と、第1端部168と、第2端部170とをさらに備える。図12に示すように、可動部分164は、第2端部170に隣接して位置する。静止部分166は、第1端部168に隣接して位置するように示されている。しかし、可動部分164を第1端部168に隣接して配置し、静止部分166を第2端部170に隣接して配置しても良い。さらに、図3に示すように、可動部分164をブラシ頭部の中央部に配置し、静止部分166を可動部分164の反対側に配置しても良い。
【0067】
この実施態様によると、可動部分164は、長形本体部分150の長手方向軸線172にほぼ垂直な軸線周囲で振動する。可動部分164は、硬質剛毛178を備えることができる。静止部分166は、硬質剛毛よりも柔らかい軟質剛毛180を備えることができる。硬質剛毛178は、軟質剛毛180に対してわずかに凹んでいる。硬質剛毛178は、深く清掃して歯垢を除去する過程に役立ち、静止軟質剛毛180は、歯肉を損傷しないように比較的柔らかい。
【0068】
長形本体部分150は、傾斜シャフト190と、上部筐体192(図示しない)と、下部筐体194とをさらに備える。傾斜シャフト190は、頭部160とハンドル162との間に位置する。傾斜シャフト190は、従来の電動歯ブラシでは利用されなかった人間工学的利点を提供する。
【0069】
第3の好ましい実施態様の長形本体部分150も、モータ200を収容する中空部分196を備える。中空本体部分196は、上部筐体192と下部筐体194との間に形成される。モータ200は、可動部分164に動力を供給し、回転、振動または往復運動させる。動力は、第1実施態様に関して示して説明したバッテリによりモータに供給される。
【0070】
スイッチ(図示しない)は、図9および図11に示され、第1および第2の好ましい実施態様に関して説明したように機能するスイッチ130に類似するスイッチで良い。
【0071】
第3の実施態様は、モータ200に動作可能に接続され、モータ200により電源を供給される第1ギヤ202をさらに備える。第1ギア202は長形本体部分150の長手方向軸線172回りに回転する。第2ギヤ206は、第1ギヤ202に動作可能に接続される。第2ギヤ206は、第1ギヤ202にほぼ垂直である。第2ギヤ206は、長手方向軸線172にほぼ垂直な軸線回りで回転する。第1ギヤ202の歯208は、第2ギヤ206の歯210とかみ合い、その結果、第2ギヤ206は、第1ギヤ202が回転すると回転する。
【0072】
第1旋回アーム220は、ピン222またはその他の固締具を介して、第2ギヤ206の偏芯位置に枢着される。第2旋回アーム224は、ピンまたはその他の固締具を介して第1旋回アーム220に枢着される。シャフト230は、シャフトの第1端部232が第2旋回アーム224に固定される。シャフト230は、シャフトの第2端部234が第3旋回アーム240に枢着される。シャフト230は、傾斜シャフト190内に収容される。
【0073】
シャフト230は、長手方向軸線172にほぼ平行である。
【0074】
案内スペーサ250は、傾斜シャフト190内に位置し、シャフト230の第1端部232に隣接してシャフト230を囲み、シャフト230の側方運動を最小限にする。第2案内スペーサ252は、シャフト230の第2端部234に隣接して位置し、やはりシャフト230の側方運動を最小限にする。案内スペーサ250,252は、シャフト230を傾斜シャフト190内で整列配置させて、シャフト230が傾斜シャフト190内で側方に移動するのを最小限にする。
【0075】
第3旋回アーム240は、第1端部244および第2端部246を有する。第3旋回アーム240は、ピン253を介して旋回アームの第1端部244が第2案内スペーサ252に枢着される。第3旋回アーム240は、ピン254またはその他の固締具を介して、旋回アームの第2端部246が可動部分164に接続される。ピン254は、頭部160内に収容される可動部分164のディスク256に接続される。
【0076】
第1ギヤ202が回転すると、第2ギヤ206が回転し、その結果、第1旋回アーム220が、第2ギヤ206の周囲で長手方向軸線172に沿って前後に円形に移動する。第1旋回アーム220も、ピン222の周囲で枢動することができる。第1旋回アーム220は、移動する時、長形本体部分150の長手方向軸線172にほぼ平行に向きを維持する。第2旋回アーム224は、そのピン接続部226に対して枢動するので、第1旋回アーム220は、最小限の側方運動で、シャフト230がブラシ頭部に向かって、またブラシ頭部から離れて前後に振動することを可能にする。
【0077】
実施する際、第3旋回アーム240は、シャフト230とともに、長形本体部分150の長手方向軸線172に沿って前後に移動する。
【0078】
旋回アーム240も、長手方向軸線に垂直な方向にわずかに側方に枢動または移動することができる。
【0079】
第3旋回アーム240は、長手方向軸線172から偏位した偏位アーム260を有し、可動部分164のディスク256を部分的回転または振動運動で移動させる。第3旋回アーム240が前後に移動する時、偏位アーム260は、長手方向軸線172にほぼ垂直な軸線周囲で部分的に回転または振動するようにディスク256の外側縁部262に沿って移動する。その結果、剛毛178も、長手方向軸線172にほぼ垂直な軸線周囲で部分的に回転または振動するように移動する。
【0080】
第3旋回アーム240が回転すると、ディスク256も、長形本体部分の長手方向軸線172にほぼ垂直な軸線周囲で回転する。第3旋回アーム240も、移動する時、長形本体部分の長手方向軸線172にほぼ平行な向きを維持する。
【0081】
必要なら、第2の好ましい実施態様に関する図9および図11に示した隆起把持領域138および140に類似する隆起把持領域(図示しない)を設けても良い。これら隆起把持領域は、下部筐体194内に成形しても良い。
【0082】
第3の好ましい実施態様の電動歯ブラシも、第1の好ましい実施態様に関する図8に示したように包装することができる。消費者は、第2の好ましい実施態様に関する図9および図11に示すボタン132に類似するボタン(図示しない)を押し下げて、包装されたまま電動歯ブラシの動作を確認し、包装から出した後に連続的に電動歯ブラシを動作させることができる。
【0083】
本発明について、好ましい実施態様に関して説明した。本明細書を読んで理解すれば、他者が変形および変更を行えることは明白である。添付の請求の範囲または等価な範囲に入る限り、かかるすべての変形および変更を包含することを意図する。
【図面の簡単な説明】
【図1】 本発明に係る第一の実施形態における電動歯ブラシの斜視図である。
【図2】 図1の電動歯ブラシの側面図である。
【図3】 図1の電動歯ブラシの底面図である。
【図4】 図1の電動歯ブラシの断面図である。
【図5】 図1の電動歯ブラシの分解斜視図である。
【図6】 図1の電動歯ブラシのモータおよびギヤ組立体の拡大側断面図である。
【図7】 図1の電動歯ブラシの頭部の拡大側断面図である。
【図8】 梱包状態の電動歯ブラシの正面図および側面図である。
【図9】 本発明の第2の好ましい実施態様による電動歯ブラシの斜視図である。
【図10】 図9の電動歯ブラシの側面図である。
【図11】 図9の電動歯ブラシの底面図である。
【図12】 本発明の第3の好ましい実施態様による電動歯ブラシの斜視図である。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric toothbrush, and more particularly to an improved battery-powered toothbrush.
[0002]
[Background]
The benefits of brushing teeth with an electric toothbrush are well known, and the electric movement of a toothbrush has been the subject of very recent innovation and design activities. Also, many different types of electric toothbrushes have been introduced into the market over the past few years. However, considering the available techniques, the methods of performing toothbrush bristle and head motorized movements to more effectively clean the teeth tend to become increasingly complex and expensive and become commercially infeasible. I understand that.
[0003]
The market began to split into two price markets. At the top of the price is a more complex electric toothbrush that provides various movements for the bristles and brush head. The lower end of the market will be in the range of a very simple electric toothbrush, it will only vibrate using the shifting weight attached to the shaft of the motor, and no strong movement will be transmitted to the cleaning surface of the brush, Such toothbrushes have very few true additional cleaning benefits. Vibrations are also very uncomfortable for the hand and act to detract from the willingness to brush the teeth when appropriate.
[0004]
Over the years, many electric toothbrushes have been developed. Several known devices are described in US Pat. Nos. 5,070,567, 5,186,627, 5,274,870, 5,341,534, 5,378,153, and No. 5,732,433. The intent of the present invention is to provide an electric toothbrush that is inexpensive, effective and ergonomically correct, the brush comprising both a movable circular brush portion and a fixed brush portion. Accordingly, it was desired to develop a new and improved electric toothbrush that overcomes the above and other disadvantages and provides better and more advantageous overall results.
[0005]
This application is a continuation-in-part of U.S. Patent Application No. 09 / 163,621 filed on September 30, 1998, which is a patent application No. 09 / 236,794 filed on January 25, 1999. Is a continuation-in-part application.
[0006]
[Means for Solving the Problems]
The present invention relates to an electric toothbrush.
[0007]
In particular, electric toothbrushes are used in human hygiene to clean a person's teeth and gums using electric motion.
[0008]
In a first preferred embodiment, the electric toothbrush includes an elongated body portion, a brush head attached to the first end of the elongated body portion, and a handle attached to the second end of the elongated body portion. And an inclined shaft between the brush head and the handle.
[0009]
The brush head comprises a longitudinal axis, a circular or moving part, and a stationary part. The circular portion rotates, swivels, spirals, vibrates or reciprocates about an axis perpendicular to the longitudinal axis of the brush head and is incorporated into the larger brush head. The stationary part comprises stationary bristles located on the opposite side of the circular part. The hard bristles in the circular part may be slightly recessed in height than the bristles in the stationary part. With this particular configuration, the circular portion can be provided with hard bristles that help in the process of deep cleaning and removing plaque, and stationary bristles are generally composed of relatively soft bristles so as not to damage the gums .
[0010]
The brush head has a conventional relatively large brush head shape that allows the user to brush their teeth in a typical manner of up and down movement, and the motorized part of the brush head cleans more effectively . This construction of the brush head allows for cheap manufacturing and allows more people to use an effective electric toothbrush economically.
[0011]
The inclined shaft provides ergonomic benefits that have not been utilized in electric toothbrushes. Inclination is well known for the ergonomic advantage of easily approaching the recess on the posterior side of the oral cavity and contacting the tooth surface.
[0012]
The elongated body portion includes a hollow portion. The toothbrush further includes a motor in the hollow portion of the elongated body portion. The motor is operably connected to the movable part of the brush head and rotates, vibrates or reciprocates the movable bristles on the head. The motor has a longitudinal axis that is coaxial with the longitudinal axis of the elongated body portion.
[0013]
The hollow portion further comprises a simplified gear assembly. The gear mechanism can be constructed from any of several embodiments. In one embodiment, the gear assembly comprises a worm gear, two step gears and a shaft. The motor is operatively connected to the worm gear. The step gear is operatively connected to the worm gear and to each other. The gear assembly provides sufficient torque and speed to maintain battery life. The first step gear can be arranged at a desired angle by displacing the second matching step gear with respect to the longitudinal axis of the elongated body portion, so that the shaft itself remains linear. And no additional power or torque loss due to the additional friction of the flexible shaft. The shaft has a first end operatively connected to the excursion step gear and a second end operatively connected to the movable part of the brush head.
[0014]
The main body further includes a switch for operating the unit. The switch includes an activation button and a metal contact. Pushing the molding button down by hand and depressing the switch presses the metal contacts, completing the circuit as in a conventional temporary switch. This switch allows continuous operation by pushing the operating button forward and sliding through the ramp structure as in the case of a conventional continuous switch. This forward motion, combined with the forming ramp, moves the actuation button down to compress the metal contacts and complete the circuit. By combining these two functions in one switch, the consumer can try the unit before purchase to check its operation and operate the unit continuously after unpacking.
[0015]
The electric toothbrush can further include a battery disposed in the hollow portion of the elongated body portion. When the pushable snap cover is depressed, it is released from the end of the handle and opens, and the hollow portion is exposed. The battery is inserted and the cover is slid into a predetermined position and snapped into the predetermined position.
[0016]
In a second preferred embodiment, the electric toothbrush includes an elongated body portion, a brush head attached to the first end of the elongated body portion, and a handle attached to the second end of the elongated body portion. And an inclined shaft between the brush head and the handle.
[0017]
The brush head includes a longitudinal axis, a circular or movable portion, a stationary portion, and a first end and a second end. The first end of the head is positioned adjacent to the first end of the elongated body portion, and the second end is positioned opposite the first end. The stationary portion is located at the first end or the second end of the head. The circular portion is located at the opposite end of the head. The movable part can rotate, swivel, spiral, vibrate or reciprocate about an axis substantially perpendicular to the longitudinal axis of the brush head and is incorporated within the larger brush head. The circular portion is preferably located at the second end of the brush head in order to easily access the rear of the user's mouth and facilitate cleaning. The stationary bristles are located adjacent to the circular portion. This particular arrangement facilitates the process of deeply cleaning the user's oral cavity further by removing hard plaque by providing hard bristles in the circular portion, while stationary bristles are relatively free from damage to the gums. It makes it possible to generally construct from soft bristles.
[0018]
In a third preferred embodiment, the electric toothbrush includes an elongated body portion having opposing first and second ends, a hollow portion, a longitudinal axis, and a first end of the elongated body portion. And a head attached to the head. A handle is attached to the second end of the elongated body portion.
[0019]
The inclined shaft is located between the head and the handle. The toothbrush further includes a motor disposed within the hollow portion of the elongated body portion.
[0020]
The plurality of gears are located in the hollow portion. The plurality of gears include a first gear and a second gear. The motor is connected to the first gear, and the first gear is connected to the second gear.
[0021]
The toothbrush further includes three swivel arms. The first swing arm is pivotally attached to one gear. The first and second pivot arms are pivotally attached to each other.
[0022]
The shaft has a first end of the shaft operatively connected to one of the pair of pivot arms and a second end of the shaft operatively connected to the third pivot arm. The shaft is located within the inclined shaft.
[0023]
The head can further comprise a movable part and a stationary part. The movable part and the stationary part are located adjacent to each other. The third turning arm is connected to the movable part. The movable part further includes a disk connected to the third pivot arm.
[0024]
The movable part can be disposed adjacent to the first end of the head, and the stationary part is disposed adjacent to the second end of the head. Alternatively, the stationary part is located adjacent to the first end of the head and the movable part is located adjacent to the second end of the head. The movable part may be located in the center of the head, and the stationary part may be located on the opposite side of the head.
[0025]
The shaft moves back and forth along the longitudinal axis of the elongated body portion.
[0026]
The first gear rotates about the longitudinal axis and the second gear rotates about an axis perpendicular to the longitudinal axis.
[0027]
The swivel arm moves back and forth along the longitudinal axis of the elongated body portion.
[0028]
The movable part can rotate or vibrate about an axis perpendicular to the longitudinal axis of the head.
[0029]
Alternatively, the movable part can move back and forth along the longitudinal axis of the head.
[0030]
The switch is operably connected to the motor. When the switch is pressed, the toothbrush operates instantaneously, and when the switch is pressed and slid into the slot of the elongated body portion, the toothbrush operates continuously.
[0031]
One advantage of the present invention is to provide an electric toothbrush that includes a brush head having a conventional relatively large head shape and allows the user to brush their teeth up and down.
[0032]
Another advantage of the present invention is to provide an electric toothbrush that is inexpensive and easy to manufacture.
[0033]
Another advantage of the present invention is that it provides an electric toothbrush with an inclined shaft that is easy to access the back of the user's mouth.
[0034]
Yet another advantage of the present invention is to provide an electric toothbrush with a stationary part and a circular part, ie a movable part that rotates, pivots, vibrates or reciprocates.
[0035]
Yet another advantage of the present invention is that it provides a circular portion that rotates, reciprocates, pivots or vibrates and is located at the end of the brush head and is accessible to the back of the user's oral cavity.
[0036]
Yet another advantage of the present invention is to provide an electric toothbrush with a switch that allows instantaneous or continuous operation of the toothbrush.
[0037]
Another advantage of the present invention is to provide an electric toothbrush with a swivel arm that provides a simplified mechanism for rotating or swiveling the movable brush head.
[0038]
Still other advantages and benefits of the present invention will become apparent to those of ordinary skill in the art upon reading and understanding the following detailed description.
[0039]
DETAILED DESCRIPTION OF THE INVENTION
The present invention can take the practical form of specific components and the arrangement of each component, preferred embodiments of which are described in detail below and shown in the accompanying drawings, which form a part of this specification.
[0040]
Reference is now made to each drawing. These drawings are presented only to illustrate preferred embodiments of the invention and are not intended to limit the invention. FIG. 1 shows an electric toothbrush according to a first preferred embodiment of the present invention. This electric toothbrush can be used for human hygiene such as brushing human teeth and gums.
[0041]
As shown in FIG. 1, the electric toothbrush includes an elongated body portion 10 having a first end 12 and a second end 14. The head 16 is attached to the first end 12 and the handle 18 is attached to the second end 14.
[0042]
The head 16 has a more traditional, relatively large brush head shape, allowing the user to brush their teeth in a general manner up and down. As shown in FIG. 2, the length dimension “X” of the head 16 is approximately. 75 inches to about 1.75 inches is preferred. The thickness “Y” of the brush head 16 is about. 25 inches to about. 50 inches is good. The structure of the head 16 allows it to be manufactured inexpensively and helps to make an effective electric rotating toothbrush within an economically accessible range for most people.
[0043]
Referring to FIG. 3, the head 16 includes a longitudinal axis 19, a circular portion or movable portion or brush head 20, and stationary portions or brush heads 22, 22. The stationary portions 22 and 22 are located on the opposite side of the circular portion 20. The circular portion 20 is located at the center of the brush head 16. The circular portion 20 rotates, pivots, vibrates or reciprocates about an axis that is substantially perpendicular to the longitudinal axis 19 of the brush head 16. The circular portion 20 can rotate 360 ° or partially, or can oscillate or reciprocate back and forth.
[0044]
The circular portion 20 includes hard bristles 24. The stationary part 22 comprises soft bristles 26. The hard bristles 24 are slightly recessed than the soft bristles 26. The hard bristles 24 facilitate the process of deep cleaning and removing plaque, and the soft bristles 26 that are stationary are relatively soft so as not to damage the gums. The bristle thickness dimension “Z” shown in FIG. 25 inches to about. 75 inches is good.
[0045]
Referring again to FIG. 3, the elongated body portion 10 further includes a tilted shaft 28 that is located between the head 16 and the handle 18. The inclined shaft 28 provides an ergonomic advantage that was not available with conventional electric toothbrushes. This angle of inclination is well known for its ergonomic advantages in that it allows easy access to the back cavity of the oral cavity and allows contact with the tooth surface.
[0046]
With reference to FIGS. 4 and 5, the elongated body portion 10 further includes a hollow portion 30 that houses a motor 32. The motor 32 has a longitudinal axis 34 that coincides with the longitudinal axis 36 of the elongated body portion 10.
[0047]
The motor 32 drives the worm gear 40 and the pair of step gears 42 and 43 to supply power to the circular portion 20 to rotate, vibrate, or reciprocate. The motor 32 is operatively connected to the worm gear 40. Step gear 42 is operatively connected to step gear 43 and worm gear 40.
[0048]
As shown in FIGS. 4 and 6, the first step gear 42 allows the second step gear 43 to be combined such that it is offset with respect to the longitudinal axis 36 of the elongated body portion 10.
[0049]
As shown in FIGS. 4, 6, and 7, the shaft 44 is connected to the step gear 43 whose first end is displaced, and its second end is connected to the circular portion 20. The second step gear 43 is arranged at a desired angle so that the shaft 44 itself remains linear so that no power or torque is lost through the additional function of the flexible shaft.
[0050]
Referring again to FIG. 5, the motor 32 and the gears 40, 42, 43 are accommodated in the upper housing 46 and the lower housing 48.
[0051]
Referring again to FIG. 4, the switch 50 is provided to control the operation of the electric toothbrush and is operably connected to the motor 32. The switch 50 includes a forming operation button 52 and a metal contact 54. The switch 50, when the molding activation button 52 is pushed down by hand, results in the metal contacts 54 being squeezed to complete the circuit, and the toothbrush operates primarily. The switch 50 can also be operated continuously due to the ramp structure, and can be operated continuously by sliding the button 52 forward toward the head 16. As button 52 is moved forward, it couples to forming ramp 58 in metal contact 54, which moves downward, pressing metal contact 54 to complete the circuit. The toothbrush then operates continuously until the button 52 slides back to the off position toward the handle 18 and leaves the metal contact 54.
[0052]
By combining these two functions with one switch 50, the toothbrush can be packaged in the state shown in FIG. 8, and the consumer pushes down the button 52 from above the package so that the toothbrush is packaged. The operation of the toothbrush can be confirmed as it is, and it can be operated continuously after being taken out of the package. FIG. 8 shows one type of button 52. Note that other sizes and shapes of buttons can also be used.
[0053]
4 and 5, the battery 60 is disposed within the hollow portion 30 of the elongated body portion 10. A battery terminal or contact 62 is provided on the battery 60. AA batteries can be used as shown in FIG. To install the battery 60 in the hollow portion 30, the slidable snap cover 64 is pushed down and slid away from the end of the handle 18 to expose the hollow portion 30. After the battery 60 is inserted, the cover 64 is slid back onto the housing and snapped into place. Next, the terminal end of the battery 60 is brought into contact with the metal contact 54.
[0054]
If desired, the recesses or gripping areas 70 and 72 can be molded into the upper and lower housings 46, 48 as shown in FIG. The recesses 70 and 72 are used to support the user's thumb and forefinger or other finger to make the use of the electric toothbrush easier and more comfortable.
[0055]
A second preferred embodiment of the electric toothbrush according to the present invention is shown in FIG.
[0056]
The electric toothbrush includes an elongated body portion 80 having a first end 82 and a second end 84. The head 86 is attached to the first end 82 and the handle 88 is attached to the second end 84.
[0057]
Referring now to FIG. 11, the head 86 includes a longitudinal axis 90, a circular or movable part or brush head 100, a stationary part or brush head 102, a first end 104, and a second end. Unit 106. The first end 104 is located adjacent to the first end 82 of the elongated body portion 80. The second end portion 106 is positioned to face the first end portion 104. The circular portion 100 is preferably located at the second end 106 of the brush head 86. The stationary portion 102 is preferably located at the first end 104 of the brush head 86 adjacent to the circular portion 100. However, it should be appreciated that the circular portion 100 and the stationary portion 102 may be arranged in different orientations. The circular portion 100 rotates, pivots, vibrates or reciprocates about an axis that is substantially perpendicular to the longitudinal axis 90 of the brush head 86.
[0058]
The second preferred embodiment also has a worm gear 40 and a pair of step gears 42 and 43 as shown in FIGS. The motor 32 supplies power to the worm gear 40 and the pair of step gears 42 and 43. The step gear 42 allows the corresponding step gear 43 to be offset with respect to the longitudinal axis of the elongated body portion 80.
[0059]
As shown in FIGS. 4, 6 and 7, the shaft 44 has a first end connected to the displacement step gear 43 and a second end connected to the circular portion 100. The second step gear 43 is arranged at a desired angle so that the shaft 44 remains in a straight line and no power or torque is lost due to the additional friction of the flexible shaft.
[0060]
Referring again to FIG. 9, the switch 130 is provided to control the operation of the electric toothbrush and is operatively connected to the motor 32. The switch 130 includes a molding operation button 132. When the molding operation button 132 is pushed down by hand, the metal contact 54 is pressed to complete the circuit, and a temporary operation of the toothbrush is performed. The operation of switch 130 is the same as that shown in FIGS. 4 and 6 and described for the first preferred elongated body portion. The switch 130 also allows continuous operation by sliding the button 132 forward toward the head 86 through the ramp structure. The toothbrush then operates continuously until the button 132 slides back to the off position toward the handle 88 and the button 132 leaves the metal contact 54.
[0061]
As shown in FIGS. 4 and 5 for the first preferred embodiment, the second preferred embodiment also has a battery 60 with battery terminals or contacts 62 provided in the hollow portion 30 of the elongated body portion 80. To install the battery 60 in the hollow portion 30, the slidable snap cover 134 (shown in FIGS. 9 to 11) is pushed down and slid to remove it from the end of the handle 88 to expose the hollow portion 30. . After the battery 60 is inserted, the cover 134 is slid back onto the housing and snapped into place.
[0062]
If desired, the raised grip region 136 can be molded into the lower housing 124 as shown in FIGS. The raised portion 136 is used to support the user's thumb and forefinger or other finger to make the use of the electric toothbrush easier and more comfortable. The raised portion 140 can also be molded onto the snap-on cover 134 to help remove the cover from the handle 88 by grasping the cover with the thumb.
[0063]
When the electric toothbrush of the second preferred embodiment is also packaged as shown in FIG. 8 with respect to the first preferred embodiment, the consumer depresses the button 132 from above the package and the operation of the toothbrush with the toothbrush packaged. Can be operated continuously after unpacking.
[0064]
A third preferred embodiment of the present invention is shown in FIG.
[0065]
The electric toothbrush includes an elongated body portion 150 having a first end 152 and a second end 154. The head 160 is attached to the first end 152 and the handle 162 is attached to the second end 154.
[0066]
The head 160 further includes a movable part, that is, a brush head 164, a stationary part, that is, a brush head 166, a first end 168, and a second end 170. As shown in FIG. 12, the movable portion 164 is located adjacent to the second end 170. Stationary portion 166 is shown positioned adjacent to first end 168. However, the movable portion 164 may be disposed adjacent to the first end 168 and the stationary portion 166 may be disposed adjacent to the second end 170. Further, as shown in FIG. 3, the movable portion 164 may be disposed at the center of the brush head, and the stationary portion 166 may be disposed on the opposite side of the movable portion 164.
[0067]
According to this embodiment, the movable portion 164 oscillates about an axis that is substantially perpendicular to the longitudinal axis 172 of the elongated body portion 150. The movable part 164 can comprise hard bristles 178. The stationary portion 166 can comprise soft bristles 180 that are softer than hard bristles. The hard bristles 178 are slightly recessed with respect to the soft bristles 180. The hard bristles 178 help in the process of deep cleaning and removing plaque, and the static soft bristles 180 are relatively soft so as not to damage the gums.
[0068]
The elongated body portion 150 further includes an inclined shaft 190, an upper housing 192 (not shown), and a lower housing 194. The inclined shaft 190 is located between the head 160 and the handle 162. The inclined shaft 190 provides an ergonomic advantage that has not been utilized with conventional electric toothbrushes.
[0069]
The elongated body portion 150 of the third preferred embodiment also includes a hollow portion 196 that houses the motor 200. The hollow body portion 196 is formed between the upper housing 192 and the lower housing 194. The motor 200 supplies power to the movable part 164 to rotate, vibrate, or reciprocate. Power is supplied to the motor by the battery shown and described with respect to the first embodiment.
[0070]
The switch (not shown) may be a switch similar to the switch 130 shown in FIGS. 9 and 11 and functioning as described with respect to the first and second preferred embodiments.
[0071]
The third embodiment further includes a first gear 202 operably connected to the motor 200 and supplied with power by the motor 200. The first gear 202 rotates about the longitudinal axis 172 of the elongated body portion 150. Second gear 206 is operably connected to first gear 202. The second gear 206 is substantially perpendicular to the first gear 202. The second gear 206 rotates about an axis that is substantially perpendicular to the longitudinal axis 172. The teeth 208 of the first gear 202 mesh with the teeth 210 of the second gear 206, so that the second gear 206 rotates as the first gear 202 rotates.
[0072]
The first swivel arm 220 is pivotally attached to the eccentric position of the second gear 206 via a pin 222 or other fastening tool. The second swivel arm 224 is pivotally attached to the first swivel arm 220 via a pin or other fastener. The shaft 230 has a first end 232 of the shaft fixed to the second pivot arm 224. The shaft 230 is pivotally attached to the third pivot arm 240 at the second end 234 of the shaft. The shaft 230 is accommodated in the inclined shaft 190.
[0073]
The shaft 230 is substantially parallel to the longitudinal axis 172.
[0074]
A guide spacer 250 is located within the tilted shaft 190 and surrounds the shaft 230 adjacent to the first end 232 of the shaft 230 to minimize lateral movement of the shaft 230. The second guide spacer 252 is located adjacent to the second end 234 of the shaft 230 and also minimizes lateral movement of the shaft 230. The guide spacers 250, 252 align the shaft 230 within the tilted shaft 190 and minimize the lateral movement of the shaft 230 within the tilted shaft 190.
[0075]
The third pivot arm 240 has a first end 244 and a second end 246. In the third pivot arm 240, the first end 244 of the pivot arm is pivotally attached to the second guide spacer 252 via a pin 253. The third swivel arm 240 has a second end 246 of the swivel arm connected to the movable part 164 via a pin 254 or other fastener. The pin 254 is connected to the disk 256 of the movable part 164 housed in the head 160.
[0076]
As the first gear 202 rotates, the second gear 206 rotates, and as a result, the first swivel arm 220 moves back and forth along the longitudinal axis 172 around the second gear 206 in a circular fashion. The first pivot arm 220 can also pivot about the pin 222. As the first pivot arm 220 moves, it maintains its orientation substantially parallel to the longitudinal axis 172 of the elongated body portion 150. Since the second swivel arm 224 pivots relative to its pin connection 226, the first swivel arm 220 moves with minimal lateral movement so that the shaft 230 is toward and away from the brush head. Allows you to vibrate back and forth.
[0077]
In practice, the third pivot arm 240 moves back and forth along the longitudinal axis 172 of the elongated body portion 150 along with the shaft 230.
[0078]
The swivel arm 240 can also pivot or move slightly laterally in a direction perpendicular to the longitudinal axis.
[0079]
The third swivel arm 240 has a displacement arm 260 that is displaced from the longitudinal axis 172, and moves the disk 256 of the movable portion 164 with partial rotation or vibrational motion. As the third pivot arm 240 moves back and forth, the deflection arm 260 moves along the outer edge 262 of the disk 256 so as to partially rotate or vibrate about an axis substantially perpendicular to the longitudinal axis 172. . As a result, the bristles 178 also move to partially rotate or vibrate about an axis that is substantially perpendicular to the longitudinal axis 172.
[0080]
As the third pivot arm 240 rotates, the disk 256 also rotates about an axis that is substantially perpendicular to the longitudinal axis 172 of the elongated body portion. The third pivot arm 240 also maintains an orientation that is substantially parallel to the longitudinal axis 172 of the elongated body portion as it moves.
[0081]
If desired, raised grip areas (not shown) similar to the raised grip areas 138 and 140 shown in FIGS. 9 and 11 for the second preferred embodiment may be provided. These raised grip areas may be molded in the lower housing 194.
[0082]
The electric toothbrush of the third preferred embodiment can also be packaged as shown in FIG. 8 for the first preferred embodiment. The consumer depresses a button (not shown) similar to the button 132 shown in FIGS. 9 and 11 for the second preferred embodiment to check the operation of the electric toothbrush while packaged and continuously after unpacking. Thus, the electric toothbrush can be operated.
[0083]
The invention has been described with reference to the preferred embodiments. It will be apparent that others will be able to make variations and modifications upon reading and understanding this specification. It is intended to embrace all such variations and modifications as long as they fall within the scope of the appended claims or their equivalents.
[Brief description of the drawings]
FIG. 1 is a perspective view of an electric toothbrush according to a first embodiment of the present invention.
FIG. 2 is a side view of the electric toothbrush of FIG.
FIG. 3 is a bottom view of the electric toothbrush of FIG.
4 is a cross-sectional view of the electric toothbrush of FIG.
5 is an exploded perspective view of the electric toothbrush of FIG. 1. FIG.
6 is an enlarged side sectional view of the motor and gear assembly of the electric toothbrush of FIG. 1. FIG.
7 is an enlarged side sectional view of the head of the electric toothbrush of FIG. 1. FIG.
FIG. 8 is a front view and a side view of the electric toothbrush in a packed state.
FIG. 9 is a perspective view of an electric toothbrush according to a second preferred embodiment of the present invention.
10 is a side view of the electric toothbrush of FIG. 9. FIG.
FIG. 11 is a bottom view of the electric toothbrush of FIG.
FIG. 12 is a perspective view of an electric toothbrush according to a third preferred embodiment of the present invention.

Claims (18)

電動歯ブラシであって、
対向する第1および第2端部と、中空部分と、長手方向軸線とを有する長形本体部分と、
前記第1端部に取り付けられた頭部と、
前記頭部内に振動または回転可能に配置されたディスク形の可動部分と、
前記長形本体部分の前記中空部分内に位置するモータと、
前記中空部分内に位置するギヤであって、前記モータが前記ギヤに動作可能に接続されるギヤと、
一端を前記ギヤに偏芯位置で枢着した記第1旋回アームと、
一端を前記第1旋回アームの他端に枢着した第2旋回アームと、
一端を前記第2旋回アームの他端に枢着したシャフトと、
一端を前記シャフトの他端に枢着し、かつ他端を前記長手方向軸線から偏位した位置で前記可動部分に枢着した第3旋回アームと、
を含み、
前記第1旋回アーム、第2旋回アーム、シャフトおよび第3旋回アームが前記長手方向軸線に沿って前後移動し、かつ可動部分が振動または回転するように構成されたことを特徴とする電動歯ブラシ。
An electric toothbrush,
An elongated body portion having opposing first and second ends, a hollow portion, and a longitudinal axis;
A head attached to the first end;
A disc-shaped movable part disposed so as to vibrate or rotate in the head;
A motor located within the hollow portion of the elongated body portion;
A gear located within the hollow portion, wherein the motor is operatively connected to the gear;
A first swivel arm pivotally attached at one end to the gear at an eccentric position;
A second swivel arm having one end pivotally attached to the other end of the first swivel arm;
A shaft having one end pivotally attached to the other end of the second swivel arm;
A third swivel arm having one end pivotally attached to the other end of the shaft and the other end pivotally attached to the movable part at a position displaced from the longitudinal axis;
Including
An electric toothbrush characterized in that the first swivel arm, the second swivel arm, the shaft and the third swivel arm move back and forth along the longitudinal axis, and the movable part vibrates or rotates .
請求項1に記載の電動歯ブラシにおいて、
前記長形本体部分の第2端部に隣接して位置するハンドルをさらに含む、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1,
A handle positioned adjacent to a second end of the elongated body portion;
An electric toothbrush characterized by that.
請求項2に記載の電動歯ブラシにおいて、
前記頭部と前記ハンドルとの間に位置する傾斜シャフトをさらに含み、前記シャフトが前記傾斜シャフト内に位置する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 2,
Further comprising an inclined shaft positioned between the head and the handle, wherein the shaft is positioned within the inclined shaft;
An electric toothbrush characterized by that.
請求項1に記載の電動歯ブラシにおいて、
前記モータに操作可能に接続されるスイッチであって、前記スイッチを押し下げると、前記歯ブラシが瞬間的動作を行い、前記長形本体部分のスロット内に摺動させると、前記歯ブラシが連続的動作を行うスイッチをさらに含む、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1,
A switch operably connected to the motor, wherein when the switch is depressed, the toothbrush performs an instantaneous operation, and when slid into the slot of the elongated body portion, the toothbrush performs a continuous operation. Further includes a switch to perform,
An electric toothbrush characterized by that.
請求項1に記載の電動歯ブラシにおいて、
前記中空部分内に配置されて前記モータに電力を供給するバッテリをさらに備える、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1,
Further comprising a battery disposed within the hollow portion for supplying power to the motor;
An electric toothbrush characterized by that.
請求項に記載の電動歯ブラシにおいて、
前記頭部が、静止部分をさらに含み、前記可動部分および前記静止部分が互いに隣接して位置する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1 ,
The head further comprises a stationary part, the movable part and the stationary part being located adjacent to each other;
An electric toothbrush characterized by that.
請求項に記載の電動歯ブラシにおいて、
前記可動部分が前記頭部の第1端部に隣接して配置され、前記静止部分が前記頭部の第2端部に隣接して位置する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1 ,
The movable part is disposed adjacent to the first end of the head and the stationary part is positioned adjacent to the second end of the head;
An electric toothbrush characterized by that.
請求項に記載の電動歯ブラシにおいて、
前記静止部分が前記頭部の第1端部に隣接して配置され、前記可動部分が前記頭部の第2端部に隣接して位置する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1 ,
The stationary portion is disposed adjacent to the first end of the head and the movable portion is positioned adjacent to the second end of the head;
An electric toothbrush characterized by that.
請求項に記載の電動歯ブラシにおいて、
前記可動部分が前記頭部の中央部に位置し、前記静止部分が前記頭部の対向側に位置する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1 ,
The movable part is located in the center of the head, and the stationary part is located on the opposite side of the head;
An electric toothbrush characterized by that.
請求項に記載の電動歯ブラシにおいて、
前記可動部分が、前記第3旋回アームに枢着したディスクをさらに含む、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1 ,
The movable part further includes a disk pivotally attached to the third pivot arm;
An electric toothbrush characterized by that.
請求項に記載の電動歯ブラシにおいて、
前記可動部分が、前記長形本体部分の前記長手方向軸線に垂直な軸線周囲で回転する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1 ,
The movable portion rotates about an axis perpendicular to the longitudinal axis of the elongated body portion;
An electric toothbrush characterized by that.
請求項に記載の電動歯ブラシにおいて、
前記可動部分が、前記長形本体部分の前記長手方向軸線に垂直な軸線周囲で振動する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1 ,
The movable portion vibrates about an axis perpendicular to the longitudinal axis of the elongated body portion;
An electric toothbrush characterized by that.
請求項に記載の電動歯ブラシにおいて、
前記可動部分が硬質剛毛を備え、前記静止部分が軟質剛毛を備える、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 1 ,
The movable part comprises hard bristles and the stationary part comprises soft bristles;
An electric toothbrush characterized by that.
請求項13に記載の電動歯ブラシにおいて、
前記硬質剛毛が、前記軟質剛毛に対して凹んでいる、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 13 ,
The hard bristles are recessed with respect to the soft bristles;
An electric toothbrush characterized by that.
電動歯ブラシであって、
対向する第1端部および第2端部と、中空部分と、長手方向軸線とを有する長形本体部分と、
前記第1端部に取り付けられた頭部と、
前記頭部内に振動または回転可能に配置されたディスク形の可動部分と、
前記長形本体部分の前記中空部分内に位置するモータと、
前記中空部分内に位置する第1ギヤおよび第2ギヤであって、前記モータが前記第1ギヤに作動的に接続され、前記第1ギヤが前記第2ギヤに接続される第1ギヤおよび第2ギヤと、
一端を前記ギヤに偏芯位置で枢着した記第1旋回アームと、
一端を前記第1旋回アームの他端に枢着した第2旋回アームと、
一端を前記第2旋回アームの他端に枢着したシャフトと、
一端を前記シャフトの他端に枢着し、かつ他端を前記長手方向軸線から偏位した位置で前記可動部分に枢着した第3旋回アームと、
を含み、
前記第1旋回アーム、第2旋回アーム、シャフトおよび第3旋回アームが前記長手方向軸線に沿って前後移動し、かつ可動部分が振動または回転するように構成されたことを特徴とする電動歯ブラシ。
An electric toothbrush,
An elongated body portion having opposed first and second ends, a hollow portion, and a longitudinal axis;
A head attached to the first end;
A disc-shaped movable part disposed so as to vibrate or rotate in the head;
A motor located within the hollow portion of the elongated body portion;
A first gear and a second gear located in the hollow portion, wherein the motor is operatively connected to the first gear and the first gear is connected to the second gear; Two gears,
A first swivel arm pivotally attached at one end to the gear at an eccentric position;
A second swivel arm having one end pivotally attached to the other end of the first swivel arm;
A shaft having one end pivotally attached to the other end of the second swivel arm;
A third swivel arm having one end pivotally attached to the other end of the shaft and the other end pivotally attached to the movable part at a position displaced from the longitudinal axis;
Including
An electric toothbrush characterized in that the first swivel arm, the second swivel arm, the shaft and the third swivel arm move back and forth along the longitudinal axis, and the movable part vibrates or rotates .
請求項15に記載の電動歯ブラシにおいて、
前記可動部分が前記長手方向軸線に垂直な軸線周囲で回転する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 15 ,
The movable part rotates about an axis perpendicular to the longitudinal axis;
An electric toothbrush characterized by that.
請求項15に記載の電動歯ブラシにおいて、
前記可動部分が前記長手方向軸線に垂直な軸線周囲で振動する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 15 ,
The movable part vibrates around an axis perpendicular to the longitudinal axis;
An electric toothbrush characterized by that.
請求項15に記載の電動歯ブラシにおいて、
前記第1ギヤが前記長手方向軸線周囲で回転し、前記第2ギヤが前記長手方向軸線に垂直な軸線周囲で回転する、
ことを特徴とする電動歯ブラシ。
The electric toothbrush according to claim 15 ,
The first gear rotates about the longitudinal axis and the second gear rotates about an axis perpendicular to the longitudinal axis;
An electric toothbrush characterized by that.
JP2001522920A 1999-08-25 2000-08-15 electric toothbrush Expired - Fee Related JP4217402B2 (en)

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US09/382,745 US6178579B1 (en) 1998-09-30 1999-08-25 Electric toothbrush
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